2 * Copyright 2015 Advanced Micro Devices, Inc.
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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27 #include "amd_shared.h"
28 #include <linux/module.h>
29 #include <linux/moduleparam.h>
30 #include "amdgpu_pm.h"
31 #include <drm/amdgpu_drm.h>
32 #include "amdgpu_powerplay.h"
37 static int amdgpu_create_pp_handle(struct amdgpu_device *adev)
39 struct amd_pp_init pp_init;
40 struct amd_powerplay *amd_pp;
43 amd_pp = &(adev->powerplay);
44 pp_init.chip_family = adev->family;
45 pp_init.chip_id = adev->asic_type;
46 pp_init.pm_en = (amdgpu_dpm != 0 && !amdgpu_sriov_vf(adev)) ? true : false;
47 pp_init.feature_mask = amdgpu_pp_feature_mask;
48 pp_init.device = amd_pp->cgs_device;
49 ret = amd_powerplay_create(&pp_init, &(amd_pp->pp_handle));
55 static int amdgpu_pp_early_init(void *handle)
57 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
58 struct amd_powerplay *amd_pp;
61 amd_pp = &(adev->powerplay);
62 amd_pp->pp_handle = (void *)adev;
64 switch (adev->asic_type) {
75 amd_pp->cgs_device = amdgpu_cgs_create_device(adev);
76 if (amdgpu_create_pp_handle(adev))
78 amd_pp->ip_funcs = &pp_ip_funcs;
79 amd_pp->pp_funcs = &pp_dpm_funcs;
81 /* These chips don't have powerplay implemenations */
82 #ifdef CONFIG_DRM_AMDGPU_SI
88 amd_pp->ip_funcs = &si_dpm_ip_funcs;
89 amd_pp->pp_funcs = &si_dpm_funcs;
92 #ifdef CONFIG_DRM_AMDGPU_CIK
95 if (amdgpu_dpm == -1) {
96 amd_pp->ip_funcs = &ci_dpm_ip_funcs;
97 amd_pp->pp_funcs = &ci_dpm_funcs;
99 amd_pp->cgs_device = amdgpu_cgs_create_device(adev);
100 if (amdgpu_create_pp_handle(adev))
102 amd_pp->ip_funcs = &pp_ip_funcs;
103 amd_pp->pp_funcs = &pp_dpm_funcs;
109 amd_pp->ip_funcs = &kv_dpm_ip_funcs;
110 amd_pp->pp_funcs = &kv_dpm_funcs;
118 if (adev->powerplay.ip_funcs->early_init)
119 ret = adev->powerplay.ip_funcs->early_init(
120 adev->powerplay.pp_handle);
122 if (ret == PP_DPM_DISABLED) {
123 adev->pm.dpm_enabled = false;
130 static int amdgpu_pp_late_init(void *handle)
133 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
135 if (adev->powerplay.ip_funcs->late_init)
136 ret = adev->powerplay.ip_funcs->late_init(
137 adev->powerplay.pp_handle);
142 static int amdgpu_pp_sw_init(void *handle)
145 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
147 if (adev->powerplay.ip_funcs->sw_init)
148 ret = adev->powerplay.ip_funcs->sw_init(
149 adev->powerplay.pp_handle);
154 static int amdgpu_pp_sw_fini(void *handle)
157 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
159 if (adev->powerplay.ip_funcs->sw_fini)
160 ret = adev->powerplay.ip_funcs->sw_fini(
161 adev->powerplay.pp_handle);
168 static int amdgpu_pp_hw_init(void *handle)
171 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
174 if (adev->powerplay.ip_funcs->hw_init)
175 ret = adev->powerplay.ip_funcs->hw_init(
176 adev->powerplay.pp_handle);
178 if (ret == PP_DPM_DISABLED) {
179 adev->pm.dpm_enabled = false;
183 if ((amdgpu_dpm != 0) && !amdgpu_sriov_vf(adev))
184 adev->pm.dpm_enabled = true;
189 static int amdgpu_pp_hw_fini(void *handle)
192 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
194 if (adev->powerplay.ip_funcs->hw_fini)
195 ret = adev->powerplay.ip_funcs->hw_fini(
196 adev->powerplay.pp_handle);
201 static void amdgpu_pp_late_fini(void *handle)
203 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
205 if (adev->powerplay.ip_funcs->late_fini)
206 adev->powerplay.ip_funcs->late_fini(
207 adev->powerplay.pp_handle);
210 if (adev->powerplay.cgs_device) {
211 amd_powerplay_destroy(adev->powerplay.pp_handle);
212 amdgpu_cgs_destroy_device(adev->powerplay.cgs_device);
216 static int amdgpu_pp_suspend(void *handle)
219 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
221 if (adev->powerplay.ip_funcs->suspend)
222 ret = adev->powerplay.ip_funcs->suspend(
223 adev->powerplay.pp_handle);
227 static int amdgpu_pp_resume(void *handle)
230 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
232 if (adev->powerplay.ip_funcs->resume)
233 ret = adev->powerplay.ip_funcs->resume(
234 adev->powerplay.pp_handle);
238 static int amdgpu_pp_set_clockgating_state(void *handle,
239 enum amd_clockgating_state state)
242 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
244 if (adev->powerplay.ip_funcs->set_clockgating_state)
245 ret = adev->powerplay.ip_funcs->set_clockgating_state(
246 adev->powerplay.pp_handle, state);
250 static int amdgpu_pp_set_powergating_state(void *handle,
251 enum amd_powergating_state state)
254 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
256 if (adev->powerplay.ip_funcs->set_powergating_state)
257 ret = adev->powerplay.ip_funcs->set_powergating_state(
258 adev->powerplay.pp_handle, state);
263 static bool amdgpu_pp_is_idle(void *handle)
266 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
268 if (adev->powerplay.ip_funcs->is_idle)
269 ret = adev->powerplay.ip_funcs->is_idle(
270 adev->powerplay.pp_handle);
274 static int amdgpu_pp_wait_for_idle(void *handle)
277 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
279 if (adev->powerplay.ip_funcs->wait_for_idle)
280 ret = adev->powerplay.ip_funcs->wait_for_idle(
281 adev->powerplay.pp_handle);
285 static int amdgpu_pp_soft_reset(void *handle)
288 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
290 if (adev->powerplay.ip_funcs->soft_reset)
291 ret = adev->powerplay.ip_funcs->soft_reset(
292 adev->powerplay.pp_handle);
296 static const struct amd_ip_funcs amdgpu_pp_ip_funcs = {
297 .name = "amdgpu_powerplay",
298 .early_init = amdgpu_pp_early_init,
299 .late_init = amdgpu_pp_late_init,
300 .sw_init = amdgpu_pp_sw_init,
301 .sw_fini = amdgpu_pp_sw_fini,
302 .hw_init = amdgpu_pp_hw_init,
303 .hw_fini = amdgpu_pp_hw_fini,
304 .late_fini = amdgpu_pp_late_fini,
305 .suspend = amdgpu_pp_suspend,
306 .resume = amdgpu_pp_resume,
307 .is_idle = amdgpu_pp_is_idle,
308 .wait_for_idle = amdgpu_pp_wait_for_idle,
309 .soft_reset = amdgpu_pp_soft_reset,
310 .set_clockgating_state = amdgpu_pp_set_clockgating_state,
311 .set_powergating_state = amdgpu_pp_set_powergating_state,
314 const struct amdgpu_ip_block_version amdgpu_pp_ip_block =
316 .type = AMD_IP_BLOCK_TYPE_SMC,
320 .funcs = &amdgpu_pp_ip_funcs,